Dhibcaha yar yar ee hillaaca-sare ee soo noqnoqda 30Hz ultra high-frequency oscillation, oo leh xariir jilicsan oo gaar ah (marka loo eego timaha khafiifka ah), 1/1000 mar labaad waxay jebiyaan haemoglobin-ka, Waxay sii deyn doontaa wareejinta tamarta dusha sare ee maqaarka. Ka dib marka la saaro nabarrada, xididada, iyo jebinta hemoglobin ee xididada xididada ayaa ka dhigaya unugyo yaryar oo ay nuugaan unugyada maqaarka laftiisa.